Sandy Hook: A look back

Sunday marks the second anniversary of the Sandy Hook school shooting in Newtown, Connecticut. Look back at images from the tragedy.

1 / 34

Sunday marks the second anniversary of the Sandy Hook school shooting. On Dec. 14, 2012, 20 first-graders and six staff members were gunned down at the elementary school in Newtown, Conn., by 20-year-old Adam Lanza before he took his own life. Take a look back at images from that tragic day.